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Concept: Downsized and Supercharged Hybrid Pneumatic Engine for 30%+ Reduction in Fuel Consumption

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Schematic of downsized and supercharged four-stroke hybrid pneumatic spark injection engine. The reduction in fuel consumption is obtained mainly through enabling the effective use of a heavily downsized engine, rather than from regenerative efficiency. Source: ETH Zürich. Click to enlarge. Earlier post.). Earlier post.).

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ETH Zürich Developing Pneumatic Hybrid Engine; Approaches Hybrid-Electric Performance at Lower Cost

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Pneumatic hybrid engine on the test bench. Researchers at ETH Zürich are developing a pneumatic hybrid engine—an internal combustion engine connected to a compressed air tank instead of a battery system. If fuel is also injected, the engine responds quickly. The compressed air supply also allows extreme downsizing.

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FEV’s two-stage VCR system; 5-7% increase in fuel economy using variable length conrods

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downsized, turbocharged) gasoline engine, as operating an engine with higher compression ratios at low load can increase fuel economy compared to operating an engine with fixed compression ratio. The small end of the connecting rod in the FEV systemis equipped with an eccentric sleeve housing the wrist pin.

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Concept: Honda RD Developing Variable Compression Ratio Engine with Dual Piston Mechanism

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Engineers from Honda R&D Co., presented a pair of papers at the SAE 2009 World Congress describing the development of a variable compression ratio (VCR) engine enabled by a dual piston mechanism. liter, 4-cylinder engine, the dual piston mechanism was able to adjust the engine from a CR of 9.6 and back again.

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Renault 2010 Environment Workshop, Part 1: Combustion Engine Technology and Product Plans

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In terms of powertrain technologies, Renault focused on the introduction of new technologies for internal combustion engines and conventional transmissions, as well as outlining its commitment to electric powertrains. Select Engines. dCi engines. Specific engine-mapping aimed at reducing fuel consumption and CO 2 emissions.

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Ford Unveils Next-Generation Global Focus at NAIAS; Features New 2.0L DI Engine with Powershift Dual-Clutch Transmission for NA Market

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(The first of these will be the new Ford C-MAX and Ford Grand C-MAX—unveiled at the 2009 Frankfurt Motor Show—for launch in Europe in the second half of 2010. The new engine is designed to deliver an estimated 155 hp (116 kW) and 145 lb-ft (197 N·m) of torque and is up to 20 horsepower more powerful than the current 2.0

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Center for Automotive Research calls long-run economic risk to auto industry of mandating permanent fuel economy standards very serious; recommends periodic reviews

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Based on the results of the study, CAR believes the economic risk to the auto industry connected to mandating permanent fuel economy standards in the long run is “ very serious ” The group recommends periodic review to assess the rate of technology development and cost reduction of advanced technologies leading up to 2025.